Differential Fluid - A/T: Service and Repair
ATF Replacement - 3 Speed A/T1. Using a hexagon wrench, remove the drain plug and drain the fluid.
2. Using a hexagon wrench, install the drain plug and secure.
3. Remove the filler plug.
4. Add new fluid until it begins to run out of the filler hole.
Fluid type: ATF D-II or DEXRON III (DEXRON II)
5. Check differential fluid level. Remove the filler plug and check differential fluid level.